# data = {
#     "time": 1624093075877,
#     "seq": 3,
#     "type": "request",
#     "eventType": "CREATE_PRODUCERS",
#     "data": {
#         "transportId": "264b2a6c-7811-4568-a774-7c5acb3d79da",
#         "allProducerOptions": [{
#             "kind": "video",
#             "rtpParameters": {
#                 "codecs": [{
#                     "mimeType": "video/H264",
#                     "payloadType": 125,
#                     "clockRate": 90000,
#                     "parameters": {
#                         "level-asymmetry-allowed": 1,
#                         "packetization-mode": 1,
#                         "profile-level-id": "42e01f"
#                     },
#                     "rtcpFeedback": [{
#                         "type": "goog-remb",
#                         "parameter": ""
#                     }, {
#                         "type": "transport-cc",
#                         "parameter": ""
#                     }, {
#                         "type": "ccm",
#                         "parameter": "fir"
#                     }, {
#                         "type": "nack",
#                         "parameter": ""
#                     }, {
#                         "type": "nack",
#                         "parameter": "pli"
#                     }]
#                 }, {
#                     "mimeType": "video/rtx",
#                     "payloadType": 107,
#                     "clockRate": 90000,
#                     "parameters": {
#                         "apt": 125
#                     },
#                     "rtcpFeedback": []
#                 }],
#                 "headerExtensions": [{
#                     "uri": "urn:ietf:params:rtp-hdrext:sdes:mid",
#                     "id": 4,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id",
#                     "id": 5,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id",
#                     "id": 6,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
#                     "id": 2,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01",
#                     "id": 3,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "urn:3gpp:video-orientation",
#                     "id": 13,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "urn:ietf:params:rtp-hdrext:toffset",
#                     "id": 14,
#                     "encrypt": false,
#                     "parameters": {}
#                 }],
#                 "encodings": [{
#                     "ssrc": 2303844564,
#                     "rtx": {
#                         "ssrc": 1582726328
#                     },
#                     "dtx": false
#                 }],
#                 "rtcp": {
#                     "cname": "GnvLXkcWZGl1VxbM",
#                     "reducedSize": true
#                 },
#                 "mid": "0"
#             }
#         }, {
#             "kind": "audio",
#             "rtpParameters": {
#                 "codecs": [{
#                     "mimeType": "audio/opus",
#                     "payloadType": 111,
#                     "clockRate": 48000,
#                     "channels": 2,
#                     "parameters": {
#                         "minptime": 10,
#                         "useinbandfec": 1
#                     },
#                     "rtcpFeedback": [{
#                         "type": "transport-cc",
#                         "parameter": ""
#                     }]
#                 }],
#                 "headerExtensions": [{
#                     "uri": "urn:ietf:params:rtp-hdrext:sdes:mid",
#                     "id": 4,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time",
#                     "id": 2,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01",
#                     "id": 3,
#                     "encrypt": false,
#                     "parameters": {}
#                 }, {
#                     "uri": "urn:ietf:params:rtp-hdrext:ssrc-audio-level",
#                     "id": 1,
#                     "encrypt": false,
#                     "parameters": {}
#                 }],
#                 "encodings": [{
#                     "ssrc": 3950191896,
#                     "dtx": false
#                 }],
#                 "rtcp": {
#                     cname: "GnvLXkcWZGl1VxbM",
#                     reducedSize: true
#                 },
#                 mid: "1"
#             }
#         }]
#     }
# }
